Preliminary Design for Flexible Aircraft in a Collaborative Environment

The work presents a collaborative design approach, developed to account for the structure flexibility effects in the pre-design stages of generic aircraft configurations. A streamlined design process is developed between DLR and TU Delft, to support the transition from an initial aircraft conceptual solution, to physics based simulations. The TU Delft DEE initiator is the conceptual tool providing the initial design, which is used to instantiate further analysis tool. An Aeroelastic Engine module is responsible for the abstraction of the aircraft structural properties, and the generation of the fluid-structure disciplinary couplings, necessary to account for the flexibility effects. Multiple distributed disciplinary solvers are available, and accessible via a decentralized architecture. All the analysis modules are integrated in the design workflow by means of the open source distributed framework RCE, and the DLR’s central data model CPACS. The approach is tested for the pre-design of a conventional aircraft and a box-wing configuration, designed for a set of top level aircraft requirements. Hence, the flexibility effects for both cases are presented. The results demonstrate the importance of accounting for the flexibility effects already in the pre-design phase, especially in case of box-wing configurations, where difference in design performance can occur when ignoring such effects.

[1]  Michael Rose,et al.  An Alternative Procedure for FE-Wing Modelling , 2006 .

[2]  G. La Rocca,et al.  Knowledge based engineering techniques to support aircraft design and optimization , 2011 .

[3]  Björn Nagel,et al.  Collaborative understanding of disciplinary correlations using a low-fidelity physics-based aerospace toolkit , 2015 .

[4]  Volker Gollnick,et al.  Communication in aircraft design : Can we establish a common language? , 2012 .

[5]  Arthur Rizzi,et al.  Modeling and simulating aircraft stability and control—The SimSAC project , 2011 .

[6]  Eli Livne,et al.  Future of Airplane Aeroelasticity , 2003 .

[7]  Wolfgang König,et al.  Design and Engineering , 2008 .

[8]  Mengmeng Zhang,et al.  Towards a collaborative and integrated set of open tools for aircraft design , 2013 .

[9]  Bjoern Nagel,et al.  Preliminary Aircraft Design in a Collaborative Multidisciplinary Design Environment , 2011 .

[10]  E. Torenbeek,et al.  Synthesis of Subsonic Airplane Design , 1979 .

[11]  Jonathan E. Cooper,et al.  Introduction to Aircraft Aeroelasticity and Loads , 2007 .

[12]  Pier Davide Ciampa,et al.  Aeroelastic Design and Optimization of Unconventional Aircraft Configurations in a Distributed Design Environment , 2012 .

[13]  Arthur Rizzi,et al.  Implementation of a heterogeneous, variable-fidelity framework for flight mechanics analysis in preliminary aircraft design , 2011 .

[14]  Hirokazu Miura,et al.  Analytical Fuselage and Wing Weight Estimation of Transport Aircraft , 1996 .

[15]  Pier Davide Ciampa,et al.  A Collaborative MDO Approach for the Flexible Aircraft , 2013 .

[16]  Pier Davide Ciampa,et al.  A Hierarchical Aeroelastic Engine for the Preliminary Design and Optimization of the Flexible Aircraft , 2013 .

[17]  B. Nagel,et al.  Global Local Structural Optimization of Transportation Aircraft Wings , 2010 .

[18]  Ilan Kroo,et al.  Collaborative Optimization: Status and Directions , 2000 .

[19]  Carsten M. Liersch,et al.  A distributed toolbox for multidisciplinary preliminary aircraft design , 2011 .

[20]  Denis Howe,et al.  Aircraft loading and structural layout , 2004 .

[21]  Mengmeng Zhang,et al.  Modeling for physics based aircraft predesign in a collaborative environment , 2013 .

[22]  Volker Gollnick,et al.  An approach to multi-fidelity in conceptual aircraft design in distributed design environments , 2011, 2011 Aerospace Conference.